Longboard Skateboard Kit
Our flagship educational kit is the Longboard Skateboard Kit. The longboard skageboard kit uses contemporary composite technologies to produce a high quality skateboards in a method that is conducive to a classroom type setting.
The skateboard is built using a closed cavity molding technique often referred to as resin infusion. With resin infusion all of the materials are placed in the mold dry, with no resin. The mold is then sealed off and vacuum is applied, evacuating atmosphere from the cavity of the mold. Shortly after applying vacuum resin is introduced into the part from an inlet line and the void created by the vacuum is filled with the resin, wetting out the fiberglass in the part.
There are many benefits to this method. First the resin is the last thing to get mixed, meaning that any time prior to mixing the resin the process can be stopped and adjustments made. There is no time pressure to press ahead so the process can be slowed and methodically checked reducing the possibility for mistakes. Second higher fiber to resin ratios are attainable using this method which imparts improved flexural properties to the finished part. Third improved working environment, because the resin is introduced into the part under vacuum there is no mess from wetting out the part, the smell is greatly reduced, and resin doesn’t get dripped on the floor, or on clothes. In addition to that the amount of resin used is carefully measured out and repeatable from board to board reducing waste when compared to other less regulated processes.
Due to the properties imparted from the technologies used the board itself has great physical properties. The boards come out lighter than other longboard skateboards on the market. Additionally because of the high fiber to resin ratio obtained from infusion the boards have excellent flex and springback capabilities making it a lively fun board to ride. These same properties also dampen road noise and vibration making for a very smooth ride.
Ease of Construction and Time requirements
We have spent years developing this product for use in school settings and with teenage students. During this development we have identified pitfalls and key points that need to be adhered to in order to ensure success. With the kit comes a detailed instruction manual that goes through the process step by step, this manual also includes photographs as well as troubleshooting tips. We have found that usually after the first board students are able to go it on their own without significant help from the instructor and are able to aid other students in completing their boards.
It should take a student about a week to complete a board from start to finish. Depending on your period lengths this could vary some. Again depending on period lengths you could start 2 to 5 boards per week. If you are on a 50 minute class period a typical build would like the following:
- Day one- Load the Mold
- Day two- Infuse
- Day three – Demold and trim
- Day four- Mount the hardware
- Day five – Test
To us this is one of the best parts about this project. The kids may view this just as building a skateboard but it is much more than that. The technology that is used is current and contemporary, it relies on physics to happen. There is the science of what is really happening when vacuum is applied, is the resin being sucked in by the pump? Or is it being pushed in by atmospheric pressure? When mold is under full vacuum how much pressure is being applied? If you put a column of water on top if it how high would it have be to obtain the same pressure? (33ft)
The board is a sandwich structure that uses tri axial e-glass for the skins. This provides the opportunity to talk about fiber orientation and how it affects the performance of the board or how changing the core thickness exponentially changes the flex of the board.
Inevitably some kids will want to sell the boards they have made, this provides the chance to teach the economics of manufacturing, and to look at labor costs and work flow.
Where else do you get the chance to teach physics, chemistry, engineering, and economics in one project to students that may not otherwise be academically inclined?
Kit and Component Pricing
Click Here for Kit and Tooling information and Pricing.
Click Here for Wheels, Trucks, Risers, and Hardware.